[CI] : Copy llvm python requirements.txt to bazel workdir.

Author: sahas3

utils/bazel/docker/Dockerfile

@@ -32,6 +32,7 @@ COPY build-requirements.txt /opt/app/build-requirements.txt
 COPY test-requirements.txt  /opt/app/test-requirements.txt
 COPY torchvision-requirements.txt  /opt/app/torchvision-requirements.txt
 COPY pytorch-requirements.txt /opt/app/pytorch-requirements.txt
+COPY externals/llvm-project/mlir/python/requirements.txt /opt/app/externals/llvm-project/mlir/python/requirements.txt
 WORKDIR /opt/app
 RUN python3 -m pip install --upgrade pip
 RUN python3 -m pip install --upgrade --ignore-installed -r requirements.txt